
Thank you for purchasing the OMRON RS2 Wrist Blood Press ure 
Wrist Blood 
Pressure Monitor
Model RS2
Instruction Manual
IM-HEM-6121-E-02-01/2013
5338844-7B
Important Safety Information
Cuff Wrapping Guide
START INFLATE DEFLATE COMPLETE
Monitor.
The OMRON RS2 is a compact and easy to use blood pressure 
monitor, operating on the oscillometric principle. It measures your 
blood pressure and pulse rate simply and quickly. For comfortable 
controlled inflation without the need of pressure pre-setting or 
re-inflation the device uses its advanced “IntelliSense” technology.
Intended Use 
This product is designed to measure the blood pressure and pulse 
rate of people within the range of the designated wrist cuff, following 
the instructions in this instruction manual. 
It is mainly designed for general household use. Please read the 
Important Safety Information in this instruction manual before using 
the unit.
Please read this instruction manual thoroughly before using the 
unit. 
Please keep for future reference. 
For specific information about your own blood pressure, 
CONSULT YOUR DOCTOR.
Consult your doctor prior to using in pregnancy or if diagnos ed with 
arrhythmia or arteriosclerosis. 
Please read this section carefully before using the unit.
Warning:
• Indicates a potentially hazardous situation which, if not avoided, 
could result in death or serious injury.
(General Usage)
• Always consult your doctor. Self-diagnosis of measurement results 
and self-treatment are dangerous.
• People with severe blood flow problems, or blood disorders, should 
consult a doctor before using the unit, as cuff inflation can cause 
internal bleeding.
(Battery Usage)
• If battery fluid should get in your eyes, immediately rinse with 
plenty of clean water. Consult a doctor immediately.
Caution: 
• Indicates a potentially hazardous situation which, if not avoided, 
may result in minor or moderate injury to the user or patient or 
damage to the equipment or other property.
(General Usage)
• Do not leave the unit unattended with infants or persons who 
cannot express their consent.
• Do not use the unit for any purpose other than m easuring blood 
pressure.
• Do not use a mobile phone or other devices that emit 
electromagnetic fields, near the unit. This may result in incorrect 
operation of the unit.
• Do not disassemble the unit or wrist cuff.
• Do not operate the unit in a moving vehicle (car, airplane).
(Battery Usage)
• If battery fluid should get on your skin or clothing, immediately rinse 
with plenty of clean water.
• Use only two “AAA” alkaline (LR03) batteries with this unit.
• Do not insert the batteries with their polarities incorrectly aligned.
• Replace old batteries with new ones immediately. Replace both 
batteries at the same time.
• Remove the batteries if the unit will not be used for three months or 
more.
• Do not use new and used batteries together.
General Precautions
• Do not apply strong shocks and vibrations to or drop the unit.
• Do not take measurements after bathing, drinking alcohol or 
caffeine, smoking, exercising or eating.
• Do not inflate the wrist cuff when it is not wrapped around your 
wrist.
• Read and follow the “Important information regarding Electro 
Magnetic Compatibility (EMC)” in the Technical Data Section.
• Read and follow the “Correct Disposal of This Product” in the 
Technical Data Section when disposing of the device and any used 
accessories or optional parts.
Main unit:
A. Wrist cuff 
B. Battery compartment E. START/STOP button
C. Display
D. Memory ( ) button
Display:
F
G
H
F. Systolic blood pressure 
G. Diastolic blood pressure 
H. Heartbeat symbol
1. Flashes during measurement
2. If flashing after measurement 
completed or when viewing 
results stored in the memory, 
indicates blood pressure out of 
recommended range*.
I. Pulse display and Memory 
number
I
J. Memory symbol 
K. Irregular heartbeat symbol 
L. Cuff wrapping guide 
M. Deflation symbol 
N. Battery low symbol
* Note: If your systolic or diastolic 
pressure is outside the standa rd 
range (above 135/85 mmH g) the 
Heartbeat symbol ( ) will blink. 
Please refer to Section 3.3 .
J
K
L
M
N
2.1 Installing/Replacing the Batteries
Remove the battery cover.
1.
Insert two 1.5V “AAA” 
2.
alkaline (LR03) batteries 
as indicated in the battery 
compartment and then 
replace the battery cover.
Notes:
• If the battery low symbol ( ) appears on the display, turn off 
the unit then replace both batteries at the same time.
• The measurement values continue to be stored in memory 
even after the batteries are replaced.
Disposal of used batteries should be carried out in accordance 
with the national regulations for the disposal of batteries.
3.1 Applying the Wrist Cuff
Do not apply over clothing.
Place the wrist cuff over 
1.
your wrist.
Your palm should face upward.
Wrap the wrist cuff around 
2.
your wrist.
Wrap the wrist cuff securely 
around the wrist for taking 
accurate measurements.
Make sure that the wrist cuff 
does not cover the protruding 
part of the wrist bone (ulna) on 
the outside of the wrist.
Note: You can take a 
measurement on either 
your left or right wrist.
3.2 How to Sit Correctly
To take a measurement, you need 
to be relaxed and comfortably 
seated, under c omfortable room  
temperature. No bathing, drinking 
alcohol or caffeine, smoking, 
exercising or eating 30 minutes 
before taking a measurement.
• Sit on a chair with your feet flat on the 
floor.
• Sit upright with your back straight.
• The cuff should be at the same level 
as your heart.
• Relax your wrist and hand. Do not bend your wrist back, clench 
your fist, or bend your wrist forward.
3.3 Taking a Reading
Notes:
• To cancel a measurement, press the START/STOP button at 
any time during measurement.
• Remain still while taking a measurement.
Press the START/STOP button.
1.
All the symbols appear on the display. 
The wrist cuff will start to inflate automatically.
Cuff Wrapping Guide
The Cuff Wrapping Guide is a unique feature that 
indicates if the cuff is not wrapped tightly enough 
around the wrist. Even when the is displayed, a  
blood pressure reading will be taken.
Note: This reading is NOT reliable due to the incorrect 
wrapping of the cuff. Please wrap the cuff again, taking 
care to wrap it correctly and take the measurement 
again. When the  is displayed, the cuff is correctly 
wrapped tightly enough on the wrist and the reading is 
accurate and reliable.
Undo the wrist cuff and remove the unit.
2.
Press the START/STOP button to turn off the 
3.
monitor.
The monitor automatically stores the measurement in its 
memory. 
It will automatically turn off after two minutes.
Important:
• If your systolic or diastolic pressure is 
outside the standard range, the 
heartbeat symbol will blink when the 
measurement result is displayed.
Recent research suggests that the 
following values can be used as a 
guide to high blood pressure for 
measurements taken at home.
Systolic Blood Pressure Above 135 mmHg
Diastolic Blood Pressure Above 85 mmHg
This criteria is for home blood pressure measurement.
• Your blood pressure monitor includes an 
irregular heartbeat feature. Irregular 
heartbeats can influence the results of the 
measurement. The irregular heartbeat 
algorithm automatically determines if the 
measurement is usable or needs to be 
repeated. If the measurement results are 
affected by irregular heartbeats but the result 
is valid, the result is shown together with the 
irregular heartbeat symbol ( ). 
If the irregular heartbeats cause the measurement to be 
invalid, no result is shown. If the irregular heartbeat symbol 
( ) is shown after you have taken a measurement, repeat 
the measurement. If the irregular heartbeat symbol ( ) is 
shown frequently, please make your doctor aware of it.
Notes:
• Wait 2 - 3 minutes before taking another blood 
pressure measurement. Waiting between readings 
allows the arteries to return to the condition prior to 
taking the blood pressure measurement.
• The blood pressure can differ between the right arm 
and the left arm, and therefore also the measured 
blood pressure values can be different. OMRON 
recommends to always use the same arm for 
measurement. If the values between the two arms 
differ substantially, please check with your physician 
which arm to use for your measurement.
 Warning:
Self-diagnosis of measured results and treatment are 
dangerous. Please follow the instructions of your doctor.

3.4 Using the Memory Function
4. Troubleshooting and Maintenance
The unit automatically stores up to 30 sets of measurement 
values (blood pressure and pulse rate). If the memory is full, 
the monitor will delete the oldest readings.
To View the Readings Stored in Memory
Press the  button.
1.
The Memory number 
appears for a second 
before the pulse rate is 
displayed. The newest 
set is numbered “1”.
Note: If there are no 
measurements results 
stored in the memory, the 
screen to the right is 
displayed.
Press the  button repeatedly to view the 
2.
readings stored in memory.
To Delete All the Values Stored in Memory
When the memory symbol ( ) appears, first press 
the  button. Then while holding it down, press the 
START/STOP button simultaneously for about 2 - 3 
seconds.
First Second
Note: You cannot partially delete the stored readings.
4.1 The Icons and Error Messages
Error Display Cause Remedy
Remove the wrist cuff. Wait 
2 - 3 minutes and then take 
Irregular heartbeats 
are detected.
The batteries are 
Blink
low.
The batteries are 
Lit
exhausted. 
Wrist cuff not 
applied correctly.
Movement during 
measurement.
Wrist cuff not 
applied correctly, or 
movement during 
measurement.
Device error.
Note: The irregular heartbeat symbol ( ) may also be displayed 
with error messages.
another measurement.
Repeat the steps in section 
3.3. If this error continues to 
appear, contact your doctor.
You should replace them with 
new ones ahead of time.
Refer to section 2.1.
You should replace them with 
new ones at once.
Refer to section 2.1.
Apply the wrist cuff correctly.
Refer to section 3.1.
Repeat Measurement while 
remaining still and refraining 
from talking during the 
measurement.
Refer to section 3.3.
Apply the wrist cuff correctly 
and repeat measurement 
while remaining still and 
refraining from talking during 
the measurement.
Refer to section 3.1 and 3.3.
Contact your OMRON retail 
outlet or distributor.
4.2 Troubleshooting
Problem Cause Remedy
The wrist cuff is not 
at heart level.
The cuff is not 
The reading is 
extremely low 
(or high).
Wrist cuff pressur e 
does not rise.
Wrist cuff deflate s 
too soon.
The blood pressure is different 
each time. The reading is 
extremely low (or high).
The unit loses 
power during 
measurement.
Nothing happens 
when you press 
the buttons.
Other problems.
wrapped snugly 
around the wrist.
The arms and 
shoulders are 
tense.
Movement or 
talking during 
measurement.
Air is leaking from 
the wrist cuff.
The wrist cuff is 
loose.
The batteries are 
exhausted.
The batteries have 
been inserted 
incorrectly.
• Press the START/STOP button and repeat 
measurement.
• If the problem continues, try replacing the 
batteries with new ones.
If this still does not solve the problem, contact 
your OMRON retail outlet or distributor.
Measure while in the 
correct posture. 
Refer to section 3.2.
Wrap the cuff correctly. 
Refer to section 3.1.
Relax and try taking the 
measurement again. 
Refer to section 3.3.
Remain still and do not 
talk during Measurement. 
Refer to section 3.3.
Consult your OMRON 
retail outlet or distributor.
Apply the cuff correctly so 
that it is firmly wrapped 
around the wrist. Refer to 
section 3.1.
Blood pressure readings 
constantly vary with time 
of day and how relaxed 
you are. Take several 
deep breaths and try to 
remain relaxed before 
taking a measurement.
Replace the batteries with 
new ones. 
Refer to section 2.1.
Insert the batteries with 
the correct (+/-) polarity. 
Refer to section 2.1.
4.3 Maintenance
To protect your unit from damage, please observe the 
following:
• Do not subject the main unit and the cuff to 
extreme temperatures, humidity, moisture or 
direct sunlight.
• Do not disassemble the unit.
• Do not subject the unit to strong shocks or 
vibrations (for example, dropping the unit on the 
floor).
• Do not use volatile liquids to clean the main unit.
• Do not wash the cuff or immerse it in water.
• Do not use petrol, thinners or similar solvents to 
clean the cuff.
• Do not carry out repairs of any kind yourself. If a 
defect occurs, consult your OMRON retail outlet 
or distributor as mentioned on the packaging.
• The unit should be cleaned with a soft, dry cloth.
• Use a soft, moistened cloth and soap to clean 
the cuff.
• Keep the unit in its storage case when not in 
use.
• Fold the cuff into the storage case.
Do not store the unit in the following situations:
• If the unit is wet.
• Locations exposed to extreme temperatures, 
humidity, direct sunlight, dust or corrosive 
vapours.
• Locations exposed to vibrations, shocks or 
where it will be at an angle.
Calibration and Service
• The accuracy of this blood pressure monitor has 
been carefully tested and is designed for a long 
service life.
• It is generally recommended to have the unit 
inspected every two years to ensure correct 
functioning and accuracy. Please consult your 
authorised OMRON dealer or the OMRON 
Customer Service at the address given on the 
packaging or attached literature.
Product Description Wrist Blood Pressure Monitor 
Model OMRON RS2 (HEM-6121-E) 
Display LCD Digital Display 
Measurement Method Oscillometric method 
Measurement Range Pressure: 0 to 299 mmHg 
Accuracy Pressure: ±3 mmHg 
Inflation Automatic inflation by pump 
Deflation Automatic rapid deflation 
Memory 30 Measurements 
Power Source 2 “AAA” alkaline (LR03) batteries 1.5V 
Battery Life Approx. 300 measurements with new 
Applied Part = Type B
Protection Against 
Electric Shock 
Operating temperature/ 
Humidity 
Storage temperature/ 
Humidity 
Console Weight Approximately 101g without batteries 
Outer Dimensions Approximately 78 (w) mm x 60 (h) mm x 
Measurable 
circumference 
Cuff Material Nylon and polyester 
Package Content Main unit, storage case, battery set, 
Note: Subject to technical modification without prior notice. 
• This device fulfils the provisions of EC directive 93/42/EEC 
(Medical Device Directive). 
• This blood pressure monitor is designed according to the European 
Standard EN1060, Non-invasive sphygmomanometers Part 1: 
General Requirements and Part 3: Supplementary requirements 
for electromechanical blood pressure measuring systems.
• This OMRON product is produced under the strict quality system of 
OMRON HEALTHCARE Co. Ltd., Japan. The Core component for 
OMRON blood pressure monitors, which is the Pressure Sensor, is 
produced in Japan.
Important information regarding Electro Magnetic 
Compatibility (EMC)
With the increased number of electronic devices such as PC’s and 
mobile (cellular) telephones, medical devices in use may be 
susceptible to electromagnetic interference from other devices. 
Electromagnetic interference may result in incorrect operation of 
the medical device and create a potentially unsafe situation. 
Medical devices should also not interfere with other devices.
In order to regulate the requirements for EMC (Electro Magnetic 
Compatibility) with the aim to prevent unsafe product situations, the 
EN60601-1-2:2007 standard has been implemented. This standard 
defines the levels of immunity to electromagnetic interferences as 
well as maximum levels of electromagnetic emissions for medical 
devices.
This medical device manufactured by OMRON HEALTHCARE 
conforms to this EN60601-1-2:2007 standard for both immunity and 
emissions. 
Nevertheless, special precautions need to be observed:
• Do not use mobile (cellular) telephones and other devices, w hich 
generate strong electrical or electromagnetic fields, near the 
medical device. This may result in incorrect operation of the unit 
and create a potentially unsafe situation. Recommendation is to 
keep a minimum distance of 7 m. Verify correct operation of the 
device in case the distance is shorter.
Further documentation in accordance with EN60601-1-2:2007 is 
available at OMRON HEALTHCARE EUROPE at the address 
mentioned in this instruction manual. 
Documentation is also available at www.omron-healthcare.com.
Correct Disposal of This Product 
(Waste Electrical & Electronic Equipment)
This marking shown on the product or its 
literature, indicates that it should not be 
disposed of, with other household wastes at the 
end of its working life. 
To prevent possible harm to the environment or human health from 
uncontrolled waste disposal, please separate this product from 
other types of wastes and recycle it responsibly to promo te the 
sustainable reuse of material resources.
Household users should contact either the retailer where they 
purchased this product, or their local government office, for details 
of where and how they can return this item for environmentally safe 
recycling. 
Business users should contact their supplier and check the terms 
and conditions of the purchase contract. This product should not be 
mixed with other commercial wastes for disposal. 
Manufacturer
EU-representative
Production facility
Subsidiary
Pulse: 40 to 180/min.
Pulse: ±5% of display reading
alkaline batteries at a room temperature of 
23°C
Internally powered ME equipment
+10 to +40°C / Maximum: 30 to 85% RH
-20 to +60°C / Maximum: 10 to 95% RH / 
700 to 1060hPa
21 (d) mm (without the wrist cuff) 
Approximately 13.5 to 21.5 cm
instruction manual, guarantee card
OMRON HEALTHCARE Co., Ltd.
53, Kunotsubo, Terado-cho, Muko, Kyoto, 
617-0002 JAPAN
OMRON HEALTHCARE EUROPE B.V.
Scorpius 33, 2132 LR H oofddorp 
THE NETHERLANDS 
www.omron-healthcare.com
OMRON (DALIAN) CO., LTD.
Dalian, CHINA
OMRON HEALTHCARE UK LTD.
Opal Drive, Fox Milne, Milton Keynes, MK15 0DG 
U.K.
OMRON MEDIZINTECHNIK 
HANDELSGESELLSCHAFT mbH
John-Deere-Str. 81a, 68163 Mannheim, GERMANY 
www.omron-medizintechnik.de
OMRON SANTÉ FRANCE SAS
14, rue de Lisbonne, 93561 
Rosny-sous-Bois Cedex, FRANCE
Made in China